From: Ian Lance Taylor Date: Fri, 13 Dec 1996 18:02:35 +0000 (+0000) Subject: * config/tc-mips.c (md_begin): If configured for an embedded ELF X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=08e17202ee7afc8732505eecedffb77a86a30020;p=binutils-gdb.git * config/tc-mips.c (md_begin): If configured for an embedded ELF system, don't set the section alignment to 2**4. (s_change_sec): Likewise. (append_insn): Call record_alignment for the section. (md_section_align): Don't align the section size for an embedded ELF system. --- diff --git a/gas/ChangeLog b/gas/ChangeLog index ff724643d15..b9e78601a01 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,12 @@ +Fri Dec 13 13:00:33 1996 Ian Lance Taylor + + * config/tc-mips.c (md_begin): If configured for an embedded ELF + system, don't set the section alignment to 2**4. + (s_change_sec): Likewise. + (append_insn): Call record_alignment for the section. + (md_section_align): Don't align the section size for an embedded + ELF system. + Thu Dec 12 16:40:47 1996 Ian Lance Taylor * write.c (adjust_reloc_syms): Make sure that symbols are diff --git a/gas/config/tc-mips.c b/gas/config/tc-mips.c index 86dfc963775..4b1f0e65578 100644 --- a/gas/config/tc-mips.c +++ b/gas/config/tc-mips.c @@ -895,17 +895,23 @@ md_begin () mips_cprmask[3] = 0; /* set the default alignment for the text section (2**2) */ - record_alignment (text_section, 2); + if (OUTPUT_FLAVOR != bfd_target_elf_flavour) + record_alignment (text_section, 2); if (USE_GLOBAL_POINTER_OPT) bfd_set_gp_size (stdoutput, g_switch_value); if (OUTPUT_FLAVOR == bfd_target_elf_flavour) { - /* Sections must be aligned to 16 byte boundaries. */ - (void) bfd_set_section_alignment (stdoutput, text_section, 4); - (void) bfd_set_section_alignment (stdoutput, data_section, 4); - (void) bfd_set_section_alignment (stdoutput, bss_section, 4); + /* On a native system, sections must be aligned to 16 byte + boundaries. When configured for an embedded ELF target, we + don't bother. */ + if (strcmp (TARGET_OS, "elf") != 0) + { + (void) bfd_set_section_alignment (stdoutput, text_section, 4); + (void) bfd_set_section_alignment (stdoutput, data_section, 4); + (void) bfd_set_section_alignment (stdoutput, bss_section, 4); + } /* Create a .reginfo section for register masks and a .mdebug section for debugging information. */ @@ -1148,6 +1154,17 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi) fixS *fixp; int nops = 0; + /* Make sure the section will be aligned appropriately. Note that + we do not insert an alignment directive; it remains the user's + responsibility to align instructions if necessary. Here we only + ensure that the section will have the right default alignment, so + that the right thing will happen if no alignment directive is + used. */ + if (mips16) + record_alignment (now_seg, 1); + else + record_alignment (now_seg, 2); + prev_pinfo = prev_insn.insn_mo->pinfo; pinfo = ip->insn_mo->pinfo; @@ -1374,7 +1391,12 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi) else if (place != NULL) f = place; else if (mips16 && ! ip->use_extend && reloc_type != BFD_RELOC_MIPS16_JMP) - f = frag_more (2); + { + /* Make sure there is enough room to swap this instruction with + a following jump instruction. */ + frag_grow (6); + f = frag_more (2); + } else f = frag_more (4); fixp = NULL; @@ -8466,7 +8488,8 @@ s_change_sec (sec) | SEC_READONLY | SEC_RELOC | SEC_DATA)); - bfd_set_section_alignment (stdoutput, seg, 4); + if (strcmp (TARGET_OS, "elf") != 0) + bfd_set_section_alignment (stdoutput, seg, 4); } demand_empty_rest_of_line (); } @@ -8487,7 +8510,8 @@ s_change_sec (sec) bfd_set_section_flags (stdoutput, seg, SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA); - bfd_set_section_alignment (stdoutput, seg, 4); + if (strcmp (TARGET_OS, "elf") != 0) + bfd_set_section_alignment (stdoutput, seg, 4); } demand_empty_rest_of_line (); break; @@ -8943,7 +8967,10 @@ md_section_align (seg, addr) #ifdef OBJ_ELF /* We don't need to align ELF sections to the full alignment. However, Irix 5 may prefer that we align them at least to a 16 - byte boundary. */ + byte boundary. We don't bother to align the sections if we are + targeted for an embedded system. */ + if (strcmp (TARGET_OS, "elf") == 0) + return addr; if (align > 4) align = 4; #endif